LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

DE 41

M.Sc. DEGREE EXAMINATION – ZOOLOGY

SECOND SEMESTER – APRIL 2008

    ZO 2801 – GENETICS

 

 

 

Date : 03/05/2008            Dept. No.                                        Max. : 100 Marks

Time : 1:00 – 4:00

SECTION-A

Answer ALL                                                                                                           (10 x 2 = 20)

1.Categorize substitution mutations

2.Comment on DNA polymerase

3. Explain hybrid vigour.
4. Comment on epistasis
5. Differentiate transformation and transduction.
6. What are interferons?

7.What are multiple alleles?

8. Explain nucleolar organizer.

9.Comment on amniocentesis.

10.Distinguish monosomy from polysomy.

SECTION-B

Answer any FOUR                                                                                               (4 x 10 = 40)

11.Explain the role of genes in development.

12.Explain the semi conservation type of replication.

13.Write notes on PCR.

14.Describe bacterial conjugation.

15.Enumerate inherited disorders in man.

16.Explain the importance of prenatal diagnosis.

SECTION-C

Answer any TWO                                                                                     (2 x 20 = 40)

17.Cancer is a genetic disease. Justify.

18.DNA is the genetic material. Substantiate.

19.Describe linkage and crossing over.

20. Write an essay on biosynthesis of protein.

 

 

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